Results 51 to 60 of about 357,987 (308)
Experimental Implementation of a Concatenated Quantum Error-Correcting Code [PDF]
, 2004 Concatenated coding provides a general strategy to achieve the desired level of noise protection in quantum information storage and transmission. We report the implementation of a concatenated quantum error-correcting code able to correct against phase ...
A. M. Steane +6 more
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Quantum Generalized Reed-Solomon codes
Acta Physica Sinica, 2008 We construct a family of quantum error-correcting codes with parameters ［［n，n-2k，k+1］］q which are defined in q-dimensional quantum systems，where q is an arbitrary prime power. These codes are optimal in the sense that the minimum distance is maximal. It is shown that codes exist for all n satisfying 2≤n≤q or q2-q+2≤n≤q2.
null Li Zhuo, null Xing Li-Juan
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Quantum Walks, Quantum Gates and Quantum Computers [PDF]
, 2007 The physics of quantum walks on graphs is formulated in Hamiltonian language, both for simple quantum walks and for composite walks, where extra discrete degrees of freedom live at each node of the graph.
A. Ambainis +11 more
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Capacities of Gaussian Quantum Channels With Passive Environment Assistance [PDF]
IEEE Transactions on Information Theory, 2021 Passive environment-assisted communication takes place via a quantum channel modeled as a unitary interaction between the information carrying system and an environment, where the latter is controlled by a passive helper, who can set its initial state ...
Samad Khabbazi Oskouei +2 more
semanticscholar +1 more source
Tight Bounds on the Simultaneous Estimation of Incompatible Parameters
Physical Review X, 2021 The estimation of multiple parameters in quantum metrology is important for a vast array of applications in quantum information processing. However, the unattainability of fundamental precision bounds for incompatible observables greatly diminishes the ...
Jasminder S. Sidhu +3 more
doaj +1 more source
Optimal dense coding with mixed state entanglement [PDF]
, 2000 I investigate dense coding with a general mixed state on the Hilbert space $C^{d}\otimes C^{d}$ shared between a sender and receiver. The following result is proved.
+6 more
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IEEE Access, 2020 For Internet of Vehicles (IoV) systems with multiple users, network coding can be introduced to provide efficient error control and throughput improvement services. However, if the heterogeneity characteristics and requirements of the end users (vehicles)
Chen Huang +3 more
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Quantum soundness of testing tensor codes
Discrete Analysis, 2022 Quantum soundness of testing tensor codes, Discrete Analysis 2022:17, 73 pp. This paper proves an essential component of a major recent result in complexity theory, known as the MIP*=RE theorem, which was proved by the same authors.
Zhengfeng Ji +4 more
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Security proof of practical quantum key distribution with detection-efficiency mismatch [PDF]
, 2020 Quantum key distribution (QKD) protocols with threshold detectors are driving high-performance QKD demonstrations. The corresponding security proofs usually assume that all physical detectors have the same detection efficiency.
Yanbao Zhang +4 more
semanticscholar +1 more source
Quantum generalized Reed-Solomon codes: Unified framework for quantum maximum-distance-separable codes [PDF]
Physical Review A, 2008 We construct a family of quantum maximum-distance-separable (MDS) codes from classical generalized Reed-Solomon codes and derive the necessary and sufficient condition under which these quantum codes exist. We also give code bounds and show how to construct them analytically.
Zhuo Li, Li-Juan Xing, Xin-Mei Wang
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